Centrifugal oil-burner.



M. A. FESLER. CENTRIFUGAL OIL BURNER;

APPLICATION FILED JUNE 14, \916.

1,236,078 Patented Aug. 7, 19171.

2 SHEETS-SHEET l- JNVENTQR WITNESSES:

Ziaiz fjs'Zez ATTORNEY;

M. A. FESLER.

CENTRIFUGAL OIL BURNER.

APPLICATION FILED JUNE 14. I916.

Patented Aug. 7, 1917.

2 SHEETS-SHEET 2- WITNESSES:

INVENTOR WiZZfl/Z #5. 72251 9 Ji'IIL'ION A. FESLER, OF OAKLAND, CALIFORNIA, ASSIGNOB TO TESS SYSTEM 00., OF SAN FRANOISCO,-CALIFORNIA, A CORPORATION OF CALIFORNIA. I

%TATE% FATNT FFTQGE.

cnnmrruear. OIL-BURNER.

Specification of Letters Patent.

Patented Aug. '7, 19ft.

Substitute for application Serial 'No. 853,597, filed July 28, 1914. This application filed June 14, 1916,

Serial No. 103,634.

To all whom it may concern:

Be it known that I, MILTON A. FESLER, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented new and.

useful Improvements in Centrifugal Oil- Burners,of which the following is a specification. 1

This invention relates to oil burners of the type shown in my previous patent, #1',026,663, dated May 21, 1912, in which the oil is distributed centrifugally at the point of combustion and mixed with an annular stream of air issuing from the burner. 7

One object of the present invention is to operate the oil distributer means through the medium of a blast of air which furnishes the necessary draft. Another object is to so feed the oil to the distributor that there will be an equitable distribution maintained at all times with a minimum flow of oil. An

other object is to provide means for delivering air for combustion, both above and below the issuing oil film, so that the oil issues between upper and lower layers of ,air. A further object is to provide for regulating the volume of air in proportion to the fuel consumption. There are other objects and advantages which will be apparent hereinafter.

The invention consists of the parts an the construction and combinatlon :of parts as hereinafter more fully described and claimed, havin reference to the accompanying drawings, in which- Figure 1 is a vertical section of the invention taken on line 11 of Fig. 2.

Fig. 2 is a plan view, in section, taken on line 2-2 of Fig. 1.

Fig. 3 ,isa section taken on line 33 of Fi 1.

Fig. .4 is a detail, side elevation, of the oil discharge cap. I Fig. 5 is a plan view of parts of Fig. 4, taken on line 55 of Fig. 1.

A representsthe burnerv casing or shell,

. which is here shown in the form of an el- 3, surmounted at its upper end by the burner head 4, which is suitably insulated against the intense heat of the fire-box, to which the device is designed to be placed. I

Surrounding the pipe 3 is a revoluble .sleeve 5, turning in suitable anti-friction bearings 6 in the air draft passageway 7 within the burner casing. Sleeve 5- carries the oil distributor 8, which consists of a hub portion 9, having an annular trough 10, with spokes 11 and the outside rim or saucer portion provided with the equalizing distrlbuter grooves 12 and 13; the rim or lip "of the distributor 8 extending into the passageway formed between the periphery of the head 4 and removable ring 14 constituting the upward extension of the casing A.

Sleeve 5 and the oil distributor 8 are rotated through the medium of a blast of air entering "at 2from any suitable source of supply and with the desired velocity, re-

acting on the fan 15 which is mounted on on the pipe 3.

The distributing caps, 17 18, are cut on the bevel as shown in Fig. 4, so that the oil issuing from pipe 3 through perforations 16, will flow down between the caps 17, 18 and discharge in uniform; fiow at the lowest point into the trough 10 of the rotating oil distributer, irrespective of the quantity of oil fed to the burner, thus by a uniform delivery of oil at one side of the trough, and the trough having a rim with the narrowest diameter of the trough at the rim, the oil will, by centrifugal action, distribute itself entirely around the trough until the latter is filled, whereupon there will be a constant annular film of oil overflowing the trough.

The oil as it issues from the'passage 21 and hollow spokes strikes against the wall of the groove 12, there again to bank .up and distribute around the circumference of the burner, overflowing in a thin filmas the groove fills into the second groove 13, Where equitable circumferential distribution is further effected; the oil finally flowin in an even thin film over the entire distn uting rimor lip of the distributer 8; simultaneously a volume ofair which is being continuously forced through the burner is divided, and part of it passes out through the space 25 on the under side of the distributer and part of it passes between the spokes into the space 22 and out through the annular space 26 above the oil distributer.

In order to regulate the volume of air in proportion to the amount of fuel used and effect perfect combustion at all times, I employ a means for bypassin grsuch quantity of the air as is not needed. 0 this end I employ a damper ring 27, fitting around the burner ring 14, the latter having ports 28 at intervals adapted to register with one or the other sets of ports 29-30 in the dis tributer ring 27. The ports 29 open directly to atmosphere, while ports 30, open into flues 31, having their outlet adjacent to the upper edge of the burner ring 14 and in proximity to the annular discharge or1fices 25, 26. The damper ring 27 is operated at any suitable point byappropriate, connections represented at 32, Fig. 3.

When the burner is working on low fire ,the damper ring 27 is turned to bring the ports 28, 29 more or less into register according to the amount of air that is required to maintain combustion; this quan-' tity being delivered through the passages 25, 26. As more oil is turned on more air is needed for combustion resulting in shifting the damper 27 so that eventually ports 29 may be closed and the flue ports 39, 28, brought into register and'the entire a1r capacity of the burner will be delivered up into the fire box in; immediate proximity with the combusting gases, this air supply issuing through ports 31 in addition to the regular discharge orifices 25, 26.

In order to light a burner of this sort, I provide a pilot burner 35, suitably attached to the top of the burner caSmg'ad acent to 'head 4 and out of interference with the damper 27 to which ilot, gas may be sup quickly lighted without the use of paper or other charry material, which has the disadvantage of clogging up the burner at the point of discharge. As soon as the burner is lighted the pilot is turned ofi.

The bypassing of the air, it is to be noted, takes place between the. fan and the burner tip, so that the action of the fan will not be interfered with. Manifestly if the vol-v ume of air to the burner should be decreased or otherwise varied at a point outside the burner or before reachin the fan, it would interfere with the oil dlstributing apparatus.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. A centrifugal oil burner having means for the circumferential distribution of an annular oil stream, means for supplying a blast of air above and below said oil stream, means operated by said blast of air to rotate said oil distributing means, and means to vary the volume of air delivered to said oil stream without varying the speed of the oil distributing means.

2. In a centrifugal oil burner, a centrifugal atomizing cup adapted to discharge an annular oilstream, means for supplying an air blast above and below said oil stream, a fan operated by said air blast adapted to rotate the atomizing cup and means for bypassing a portion of the air after it has passed through the fan to vary the column of air delivered to the oil stream.

3. In a revolving oil burner, a centrifugal atomizing cup provided with an annular discharging lip, means for delivering oil to the cup and a plurality of super-posed annular ridges formed interiorly of the cup to cause an even distribution of the oil delivered to the cup before the oil discharges therefrom by centrifugal action.

4. A centrifugal oil burner comprising. a

casing, an oil delivery pipe therein, an air passageway surrounding said pipe, a centrifugal oil distributer mounted on said pipe, and a discharging means from the pipe to the distributer comprising a pair of spaced caps projecting downwardly and cut;on the bevel substantially as described. 3

5. An oil burner comprising a fixed vertical oil feed pipe, an oil distributer mounted for rotation on said ipe and having a hub portion, a trough having a rim overflow with the overflow rim of the trough of less diameter than the portion of the trough below the rim formed in said hub portion and into which trough said oil pipe discharges, holmember having a hub portion with a trough low spokes with their inner ends opening to the trough, and an outside annular rim, the oil being adapted to flow under the action of centrifugal force from said trough through thehollow spokes onto said annular rim.

6. An oil distributer comprising a rotary member having a hub portion with a trough formed in said hub portion, said trough having an outer vertical concaved wall to provide an overflow rim of less diameter than the portion of the trough below the rim, hollow spokes, and an outside annular rim, the oil being adapted to flow under the action of centrifugal force from said trough through the hollow spokes on to said annular rim.

7. An oil distributer comprising a rotary formed in said hub portion, said trough having an outwardly concaved outer wall with a rim overfi ow,'hollow spokes, and an outside annular rim, the oil bein adapted to flow under the action of centrlfugal force from said trough through the hollow spokes on to said annular rim, said rim portion having an inclined wall with one or more circumferential concaved portions therein forming grooves for effecting a circumferential distribution of the oil, substantially as described.

8. A centrifugal oil burner and oil distributer having-a circumferential annular discharging lip and having-an inclined wall with a plurality of super-posed circumferential concaved portions therein forming grooves for effecting a circumferential distribution of the oil.

9. An oil burner comprising a casing having an air passageway formed therein, a.

vertical oildelivery pipe extending through said passageway, a sleeve rotatable on said oil pipe, a fan on the sleeve rotatable by the air blast through said air passageway, a rotary oil distributer having hollow spokes ered in conjunction with the oil stream to efiect combustion without varying the speed of rotation of the oil distributing means.

' 11. An oil burner comprising a fixed vertical oil feed pipe, an oil distributor mounted for rotation-on said pipe and having a hub portion, a trough having a rim overflow with the overflow rim of the trough of less diameter than the portion of the trough below the rim formed in said hubportion and into which trough said oil pipe discharges, hollow spokes with their inner ends opening to the trough, and an outside annular rim, the oil being adapted to flow under the action of centrifugal force from said trough through the hollow spokeson to said annular rim, said outside annular rim having an annular baffle groove in the path of.

the .discharge from said spokes and into which groovethe fluid from said spokes discharges, said groove having its outer wall concaved to provide an overflow lip of less diameter than the portion of the groove below said overflow 11p.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

MILTON A. FESLER.

Witnesses:

JOHN H; HERRING, W. W, HEALEY. I 

